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revision 2673 by persson, Sat Sep 6 18:56:02 2014 UTC revision 3726 by schoenebeck, Sun Jan 26 15:30:52 2020 UTC
# Line 1  Line 1 
1  Version CVS HEAD (?)  Version SVN trunk (?)
2    
3      * general changes:
4        - Fixed compiler error in Pool.h.
5        - Require C++14 compiler support.
6        - Autoconf: Added m4/ax_cxx_compile_stdcxx.m4 macro which is used
7          for checking in configure for C++14 support (as mandatory
8          requirement) and automatically adds compiler argument if required
9          (e.g. -std=C++14).
10        - RTMath: Implemented floating point comparison methods
11          fEqual32(float,float) and fEqual64(double,double) which take the
12          expected floating point tolerances into account.
13        - Added public API C++ class "LFO", which is a cluster class encapsulating
14          all the sampler's LFO implementations to be used by 3rd party applications
15          (e.g. by Gigedit).
16        - Added int math square LFO implementation.
17        - Added int math saw LFO implementation.
18        - Added numeric complex nr sine LFO implementation.
19        - Marked class LFOTriangleDiHarmonic as deprecated
20          (will be removed in future).
21        - Added LFOAll.h which includes all LFO implementation's header files.
22        - Refactored LFO class names and their file names (PulseLFO -> LFOPulse,
23          LFOSawIntMath -> LFOSawIntMathNew, SawLFO -> LFOSawIntMathOld,
24          SineLFO -> LFOSineBuiltinFn, LFOSine -> LFOSineNumericComplexNr,
25          SquareLFO -> LFOSquarePulse and separated the latter to its own header
26          file).
27        - Renamed type LFOSigned -> LFOTriangleSigned.
28        - Renamed type LFOUnsigned -> LFOTriangleUnsigned.
29        - Using now cubic interpolation as resampling algorithm by default; and
30          linear interpolation is deprecated now.
31        - Event:Init(): memset() entire Event::Param union to zero instead of trying
32          to do that for its individual members; the latter became error prone due
33          to the union's growing complexity meanwhile.
34        - EngineChannel: Overhaul of RPN/NRPN related methods: Added new
35          *Rpn*Parameter*() methods as replacement for previous *Rpn*Controller*()
36          methods and marked the old ones as deprecated; and likewise added new
37          *Nrpn*Parameter*() methods as replacement for previous *Nrpn*Controller*()
38          methods and marked those old ones deprecated as well.
39        - Added support for MIDI CC #38 (data entry LSB): this allows higher value
40          resolution for certain (e.g. hard coded) RPN and NRPN parameters.
41        - Implemented support for compressed RPN/NRPN message sequences (that is to
42          allow processing MIDI data entry messages without always having to be
43          preceded strictly by RPN/NRPN parameter selection messages on each value
44          change).
45        - Added support for MIDI CC #96 (data increment) and MIDI CC #97 (data
46          decrement).
47        - Added support for 'null function RPN/NRPN' (which is RPN/NRPN parameter
48          MSB=127 and LSB=127) and which is disabling subsequent data
49          entry/increment/decrement CC messages.
50        - Fixed crash when editing key groups (a.k.a. exclusive groups) with an
51          instrument editor.
52        - Fixed playing noise at the end of a disk stream under certain conditions.
53        - Fixed potential crash with high pitch at end of RAM playback.
54    
55      * Real-time instrument scripts:
56        - Added method ScriptVM::setExitResultEnabled() which allows to
57          explicitly enable the built-in exit() function to optionally accept
58          one function argument; the value of the passed exit() function
59          argument will then become available by calling
60          VMExecContext::exitResult() after script execution.
61        - 64 bit support for NKSP integer scripts variables (declare $foo).
62        - Variable names, function names and preprocessor condition names must start
63          with a regular character (a-z or A-Z); starting them with a digit or
64          underscore is not allowed.
65        - NKSP parser fix: equal comparison operator "=" and not equal comparison
66          operator "#" must only accept integer operands.
67        - NKSP language: Implemented support for standard units like Hertz, seconds,
68          Bel including support for metric unit prefixes; so one can now e.g.
69          conveniently use numbers in scripts like "5us" meaning "5 microseconds",
70          or e.g. "12kHz" meaning "12 kilo Hertz", or e.g. "-14mdB" meaning
71          "minus 14 Millidecibel", or e.g. "28c" meaning "28 cents" (for tuning).
72        - NKSP language: Introduced "final" operator "!" which is specifically
73          intended for synthesis parameter values to denote that the synthesis
74          parameter value is intended to be the "final" value for that synthesis
75          parameter that should explicitly be used by the engine and thus causing
76          the sampler engine to ignore all other modulation sources for the same
77          synthesis parameter (like e.g. LFO, EG); by simply prefixing a value,
78          variable or formula with this new "!" operator the expression is marked as
79          being "final".
80        - NKSP script editor API: Added support for detecting standard unit tokens
81          and their potential metric prefix token.
82        - NKSP language: Added support for NKSP real number literals and
83          arithmetic operations on them (e.g. "(3.9 + 2.9) / 12.3 - 42.0").
84        - NKSP language: Added support for NKSP real number (floating point) script
85          variables (declare ~foo).
86        - NKSP language: Added support for NKSP real number (floating point) array
87          script variables (declare ?foo[]).
88        - Built-in script function "message()" accepts now real number argument as
89          well.
90        - Added built-in script function "real_to_int()" and its short hand form
91          "int()" for casting from real number to integer in NKSP scripts.
92        - Added built-in script function "int_to_real()" and its short hand form
93          "real()" for casting from integer to real number in NKSP scripts.
94        - Allow built-in exit() function to potentially accept real number type
95          argument as well.
96        - Built-in script functions may have a different return type depending on
97          the arguments passed to the function.
98        - Built-in script function "abs()" optionally accepts and returns real
99          number.
100        - Built-in script functions "min()" and "max()" optionally accept real
101          number arguments and return real number as result in that case.
102        - NKSP VM API: Allow units and 'final'ness to be returned as result from
103          built-in functions (added methods VMFunction::returnUnitType() and
104          VMFunction::returnsFinal() for that purpose which must be implemented by
105          built-in function implementations).
106        - NKSP language: Allow metric unit prefixes of numeric scalar and array
107          variables to be changed freely at runtime (unlike unit types like Hz etc.
108          which are still sticky, parse-time features of variables which cannot be
109          changed at runtime for the intentional sake of determinism).
110        - NKSP language: 'final' values are prohibited for array variables for now
111          (attempt causes a parsers error).
112        - NKSP language: expressions with unit types (e.g. Hz) are prohibited for
113          conditions of runtime control structures like if(), while(), select()
114          (attempt causes a parser error).
115        - NKSP VM API: Allow built-in functions to perform their own, individual
116          parse time checks of arguments going to be passed to the function at
117          runtime (added method VMFunction::checkArgs() for that purpose).
118        - NKSP language: raise parser warning if only one operand of binary
119          operators (like logical 'or' comparison) contain a 'final' value (because
120          it would always yield in a 'final' result in such cases).
121        - NKSP language: Allow comparison (=, #, <, >, <=, >=) of values with
122          different metric unit prefixes, which will behave as expected (e.g.
123          result of expression '1000us < 2ms' is true).
124        - NKSP language: Allow adding values with different metric unit prefixes
125          (e.g. result of expression '100Hz + 5kHz' is '5100Hz').
126        - NKSP language: Allow subtracting values with different metric unit
127          prefixes (e.g. result of expression '1ms - 20us' is '980us').
128        - NKSP language: Allow multiplying with any metric unit prefixes
129          (e.g. result of expression '2k * 3ms' is '6s'), however multiplications
130          with unit types on both sides (e.g. '2s * 2s') is still prohibited since
131          we don't have any considerable practical use for a term like '4s^2'
132          (hence any attempt multiplying two unit types still causes parser error).
133        - NKSP language: Allow dividing by any metric unit prefixes and allow
134          division of same unit type on both sides (e.g. expression '8kHz / 1000Hz'
135          yields in unit free result '8'). So this is now a way to cast units away
136          e.g. for passing the result to other expressions, certain function calls
137          or variables which are not accepting any units (or that specific unit).
138        - NKSP language: integer arrays and real number arrays can now be converted
139          to strings (e.g. for dumping their content with message() calls for
140          script debugging purposes).
141        - NKSP language: expressions and variables with units are now correctly
142          casted to strings (e.g. with message() calls).
143        - NKSP language: comparing real numbers for equalness (e.g. '~foo = 3.1') or
144          unequalness (e.g. '~foo # 3.1') is now less strict and takes the expected
145          floating point tolerances into account.
146        - NKSP VM API: Added methods VMScalarNumberExpr::evalCastInt() and
147          VMScalarNumberExpr::evalCastReal().
148        - NKSP VM API: Added base class 'VMNumberArrayExpr' for classes
149          'VMIntArrayExpr' and 'VMRealArrayExpr'.
150        - NKSP VM API: replaced all unitPrefix() (parse time) methods by
151          unitFactor() (runtime) methods.
152        - Built-in function "exit()" supports now returning units and 'final'ness
153          for test cases.
154        - The following built-in functions support now units as well: "abs()",
155          "random()", "inc()", "dec()", "in_range()", "min()", "max()",
156          "real_to_int()", "int()", "int_to_real()" and "real()".
157        - Built-in functions "array_equal()", "search()" and "sort()" support now
158          real number arrays (correctly) as well.
159        - Added individual parse time checks of arguments to be passed to built-in
160          functions "random()", "inc()", "dec()", "in_range()", "min()", "max()",
161          "array_equal()" and "search()" specific for their individual purposes.
162        - NKSP VM refactoring: Renamed all methods, functions and classes matching
163          pattern *ScalarNumber* to simply *Number* (that is i.e. classes
164          VMScalarNumberExpr -> VMNumberExpr, ScalarNumberExpr -> NumberExpr,
165          ScalarNumberVariable -> NumberVariable, ScalarNumberBinaryOp ->
166          NumberBinaryOp, VMScalarNumberResultFunction -> VMNumberResultFunction,
167          method VMExpr::asScalarNumberExpr() -> VMExpr::asNumber(), function
168          isScalarNumber() -> isNumber()).
169        - NKSP VM API: Added 4 overridden methods to class VMNumberExpr:
170          evalCastInt(MetricPrefix_t), evalCastInt(MetricPrefix_t,MetricPrefix_t),
171          evalCastReal(MetricPrefix_t), evalCastReal(MetricPrefix_t,MetricPrefix_t)
172          as convenient methods for automatically converting values to expected
173          metric value basis.
174        - Built-in function "wait()" accepts now both integers and real numbers as
175          argument.
176        - NKSP VM API cleanup: Get rid of legacy method
177          VMFunction::argType(vmint iArg) which was already superseded by its new
178          replacement VMFunction::acceptsArgType(vmint iArg, ExprType_t type).
179        - NKSP parser: if wrong argument type was passed to a built-in function and
180          that built-in function accepts more than one data type for the argument,
181          then show all supported data types as parser error message.
182        - Built-in function "play_note()" accepts now real numbers and seconds as
183          unit type as well for its 3rd and 4th function arguments.
184        - The following built-in functions accept now real numbers as well for their
185          2nd function argument: "change_vol()", "change_tune()", "change_cutoff()",
186          "change_attack()", "change_decay()", "change_release()",
187          "change_sustain()", "change_cutoff_attack()", "change_cutoff_decay()",
188          "change_cutoff_sustain()", "change_cutoff_release()",
189          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
190          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()",
191          "change_pan_time()", "fade_in()", "fade_out()", "change_play_pos()".
192        - Fixed built-in function "change_play_pos()" not having accepted metric
193          prefixes at all.
194        - Fixed the following built-in functions having misinterpreted values given
195          with unit type (for their 2nd argument) as if they were relative values
196          (that is as if they were passed without a unit type): "change_attack()",
197          "change_decay()", "change_release()", "change_cutoff_attack()",
198          "change_cutoff_decay()", "change_cutoff_release()".
199        - Fixed the following built-in functions having applied completely wrong
200          'final' values: "change_sustain()", "change_cutoff_sustain()" (since the
201          respective EGs being their modulation sink assume uint data type with
202          value range 0..1000 instead of 0.0..1.0.
203        - Added individual parse-time checks of function arguments for the following
204          built-in functions: "play_note()", "note_off()", "set_event_mark()",
205          "delete_event_mark()", "by_marks()", "change_cutoff()", "change_attack()",
206          "change_decay()", "change_release()", "change_cutoff_attack()",
207          "change_cutoff_decay()", "change_cutoff_release()",
208          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
209          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()" and
210          "change_pan_time()".
211        - Don't abort function call if unit type was used and at the same time
212          'final' operator was omitted for the primary value argument of the
213          following built-in functions: "change_cutoff()", "change_attack()",
214          "change_decay()", "change_release()", "change_cutoff_attack()",
215          "change_cutoff_decay()", "change_cutoff_release()",
216          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
217          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()",
218          "change_pan_time()", instead imply 'final'ness at runtime and raise an
219          appropriate parser warning at parse time.
220        - Added built-in real number functions "round()", "ceil()", "floor()",
221          "sqrt()", "log()", "log2()", "log10()", "exp()", "pow()", "sin()",
222          "cos()", "tan()", "asin()", "acos()", "atan()".
223        - Added built-in script real number constant "~NI_MATH_PI".
224        - Added built-in script real number constant "~NI_MATH_E".
225        - NKSP language: Allow unary '+' operator.
226        - Added built-in script functions "msb()" and "lsb()".
227        - NKSP language: Added support for RPN event handler
228          ("on rpn ... end on" in instrument scripts).
229        - NKSP language: Added support for NRPN event handler
230          ("on nrpn ... end on" in instrument scripts).
231        - Added built-in read-only variables "$RPN_ADDRESS" and "$RPN_VALUE" which
232          may be read from the new RPN/NRPN script handlers to get the (N)RPN
233          parameter that had been changed and its new value.
234        - Added built-in const variables "$NI_CB_TYPE_RPN" and "$NI_CB_TYPE_NRPN"
235          which are identifying the new (N)RPN handlers as such at script runtime.
236        - Implemented built-in script function "set_rpn()".
237        - Implemented built-in script function "set_nrpn()".
238        - Fix: built-in functions returning an array type were broken and caused a
239          crash when the built-in function's (supposed to be array) result value was
240          used by the script VM.
241        - Removed upper value constraint for 2nd argument of built-in functions
242          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
243          "change_pitch_lfo_freq()","change_reso()", "change_cutoff()",
244          "change_amp_lfo_depth()", "change_cutoff_lfo_depth()" and
245          "change_pitch_lfo_depth()", to allow e.g. passing value 2000000 to double
246          the LFO frequency / resonance / cutoff frequency.
247    
248      * test cases:
249        - Fixed compiler errors in test cases.
250        - Updated README for how to compile & run test cases.
251        - Updated test case
252          MutexTest::testDoubleLockStillBlocksConcurrentThread() to latest
253          expected behaviour of the Mutex class implementation (recursive
254          mutex type).
255        - Added test cases for NKSP core language aspects and core built-in
256          functions.
257        - Fixed thread tests segfaulting on Linux.
258        - NKSP: Added real number test cases for built-in functions exit(),
259          int_to_real(), real(), real_to_int() and int(), as well as for the
260          plus, minus and negate language operators.
261        - Added massive amount of NKSP test cases for standard measuring units and
262          'final' operator usage cases.
263        - Added NKSP test cases for (floating point tolerance aware) real number
264          equalness / unequalness comparison.
265        - Added NKSP int array and real array tests for value assignment and
266          initialization of arrays.
267        - Added NKSP test cases for built-in functions "round()", "ceil()",
268          "floor()", "sqrt()", "log()", "log2()", "log10()", "exp()", "pow()",
269          "sin()", "cos()", "tan()", "asin()", "acos()", "atan()".
270        - Added NKSP test cases for unary '+' operator.
271        - Added NKSP test cases for core built-in variables.
272    
273      * GigaStudio/Gigasampler format engine:
274        - LFOTriangleIntMath and LFOTriangleIntAbsMath: Fixed FlipPhase=true
275          behaviour for start_level_mid.
276        - Changed LFO start levels: LFO1 and LFO2 both to mid, LFO3 to max. start
277          level (see discussion "GigaStudio LFO compatibility" on mailing list
278          from 2019-09-26 for details).
279        - Changed default wave form for all 3 LFOs to sine (instead of triangle;
280          see discussion "GigaStudio LFO compatibility" on mailing list from
281          2019-09-26 for details).
282        - Format extension: Added support for different LFO wave forms (currently
283          either sine [default], triangle, saw or square).
284        - Format extension: Added support for LFO phase displacement (0°..360°).
285        - Format extension: Added support for flipping LFO polarity on LFO 3
286          (in the original gig format this was only available for LFO 1 and LFO 2).
287        - Format extension: Support for additional filter types:
288          lowpass 1/2/4/6-pole, highpass 1/2/4/6-pole, bandpass 2-pole,
289          bandreject 2-pole.
290        - Fixd potential crash with polynomial interpolator and max. pitch.
291        - If minimum cutoff is defined, remap cutoff controller CC values to really
292          span the entire possible cutoff range (and avoiding a dead controller
293          zone).
294    
295      * SFZ format engine:
296        - Fixed support for regions with loccN/hiccN conditions on more than one
297          MIDI controller.
298    
299      * Benchmarks:
300        - Fixed benchmarks/triang.cpp falsely having favoured "int math abs"
301          algorithm (since result of 2nd run was not accumulated).
302        - Added benchmark for saw wave (benchmarks/saw.cpp).
303        - Added benchmark for sine wave (benchmarks/sine.cpp).
304        - Added benchmark for square wave (benchmarks/square.cpp).
305        - Increased amount of benchmarks runs by factor 6 to achieve benchmark times
306          which are large enough on modern systems.
307    
308    Version 2.1.1 (27 Jul 2019)
309    
310      * Real-time instrument scripts:
311        - Fixed behavior of built-in NKSP functions change_sustain(),
312          change_cutoff_attack(), change_cutoff_decay(), change_cutoff_sustain()
313          and change_cutoff_release().
314    
315      * general changes:
316        - Only play release trigger samples on sustain pedal up if this behaviour
317          was explicitly requested by the instrument (otherwise only on note-off).
318        - Fixed compiler warnings.
319        - Fixed compilation error when cross-compiling to Mac.
320        - FX Sends: Provide more useful error messages on routing problems
321          (see bug #169).
322        - LSCP doc: Be more clear describing the two distinct approaches
323          of using external vs. internal effects (see bug #169).
324        - "optional" class: Fixed comparison operators.
325    
326      * Gigasampler/GigaStudio format engine:
327        - Format extension: If requested by instrument then don't play release
328          trigger sample on note-off events.
329    
330      * SFZ format engine:
331        - Fixed memory leak when releasing samples
332          (fixes bug #307, patch by Jacek Roszkowski)
333        - Fixed potential crash when a sample is shared by more than one region
334          (fixes bug #308, patch by Jacek Roszkowski).
335        - Opcode 'sample': Added support for built-in sample '*silence'
336          (fixes bug #310, patch by Jacek Roszkowski).
337    
338    Version 2.1.0 (25 Nov 2017)
339    
340      * SFZ format engine:
341        - added support for <global>, <master> and #define (patch by Alby M)
342        - Removed code duplication in SFZ file loading code.
343        - Added support for sfz extension opcode 'script' which may be used to
344          load real-time instrument script file (NKSP script language).
345        - Implemented opcode set_ccN (initial patch by Giovanni Senatore).
346        - Fixed unintended volume fade-in of voices under certain conditions.
347        - sfz parser: allow missing space between header and opcode
348    
349      * Gigasampler/GigaStudio format engine:
350        - Fixed clicks and pumping noise with Lowpass Turbo filter on very low
351          cutoff settings.
352        - Got rid of resembling an ancient GSt misbehavior which did not pitch at
353          all if an up-pitch of more than 40 semi tones was requested (I don't
354          think there is any stock gig sound that requires this behavior to
355          resemble its original sound).
356        - Added support for controlling whether the individual EGADSR stages may
357          be aborted (as LinuxSampler extension to the original GigaStudio 4
358          format).
359    
360      * general changes:
361        - fixed printf type errors (mostly in debug messages)
362        - use unique_ptr instead of auto_ptr when building with C++11
363        - Added RTAVLTree class which is a real-time safe ordered multi-map, thus
364          allowing to sort data efficiently in real-time safe manner.
365        - RTList class: added methods for moving/inserting elements to arbitrary
366          position within a list.
367        - RTList class: added method fromPtr() for creating an Iterator object from
368          a raw element pointer.
369        - Attempt to partly fix resetting engine channels vs. resetting engine, an
370          overall cleanup of the Reset*(), ConnectAudioDevice(),
371          DisconnectAudioDevice() API methods would still be desirable though,
372          because the current situation is still inconsistent and error prone.
373        - Active voices are now internally grouped to "Note" objects, instead of
374          being directly assigned to a keyboard key. This allows more fine graded
375          processing of voices, which is i.e. required for certain instrument
376          script features.
377        - Fix: Release trigger voices were not spawned on sustain pedal up
378          (CC #64) events.
379        - Fix: Release trigger voices can now also distinguish correctly between
380          note-off and sustain pedal up events.
381        - All engines: Increased ramp speed of volume smoother and pan smoother
382          (while slow rate of crossfade smoother is preserved) to allow quick
383          volume and pan changes by instrument scripts for instance.
384        - gig/sf2/sfz: Fixed aftertouch channel pressure events being processed
385          properly and thus were ignored for certain uses.
386        - Added new C++ API method
387          VirtualMidiDevice::SendChannelPressureToSampler().
388        - windows, 32-bit: fixed potential crashes by making sure the stack in
389          sub threads is 16-byte aligned
390        - fixed numerous compiler warnings
391        - Fixed invalid (note-on) event ID being assigned to new Note objects.
392        - Revised fundamental C++ classes "Thread", "Mutex" and "Condition" which
393          fixes potential undefined behavior.
394        - Fixed Note object leak when triggering notes on keys which did not
395          have a valid sample mapped (fixes bug #252).
396        - Fixed compilation errors when compiling with CONFIG_DEVMODE enabled.
397        - linuxsampler binary fix: option --create-instruments-db ignored
398          subsequent optional argument due to glibc's implementation oddity
399          which expects a "=" sign, but no space between them.
400    
401      * packaging changes:
402        - removed unnecessary dependency to libuuid
403          (originated by libgig's usage of it)
404        - Automake: set environment variable GCC_COLORS=auto to allow GCC to
405          auto detect whether it (sh/c)ould output its messages in color.
406        - Debian: Fixed packaging error about invalid "Source-Version"
407          substitution variable.
408        - Debian: Raised Debian compatibility level to Debian 9 "Stretch".
409        - Debian: Added build dependency to libsqlite3-dev for building
410          linuxsampler with instruments DB support.
411    
412      * Real-time instrument scripts:
413        - Implemented scheduler for delayed MIDI events and for suspended scripts.
414        - Built-in script function "wait()": implemented support for function's
415          "duration-us" argument, thus scripts using this function are now
416          correctly resumed after the requested amount of microseconds.
417        - Built-in script function "play_note()": implemented support for
418          function's "duration-us" argument, thus notes triggered with this
419          argument are now correctly released after the requested amount of
420          microseconds.
421        - Fix: script events were not cleared when engine channel was reset,
422          potentially causing undefined behavior.
423        - Fixed crash which happened when trying to reference an undeclared
424          variable.
425        - Built-in script function "play_note()": Added support for passing
426          special value -1 for "duration-us" argument, which will cause the
427          triggered note to be released once the original note was released.
428        - Instrument script classes now exported with the liblinuxsampler C++ API.
429        - Added new API method ScriptVM::syntaxHighlighting() which provides
430          a convenient syntax highlighting backend for external instrument
431          script editor applications.
432        - Added new C++ API class "ScriptVMFactory".
433        - Extended parser issues to provide not only first line and first
434          column, but also last line and last column of issue (thus marking
435          the precise span of the issue within the source code).
436        - Reload script automatically after being modified by an instrument
437          editor.
438        - NKSP language grammar correction: allow empty event handler bodies
439          like "on note end on".
440        - Implemented built-in script function "change_vol()".
441        - Implemented built-in script function "change_tune()".
442        - Implemented built-in script function "change_pan()".
443        - Implemented built-in script function "change_cutoff()".
444        - Implemented built-in script function "change_reso()".
445        - Implemented built-in script function "event_status()".
446        - Added built-in script constants "$EVENT_STATUS_INACTIVE" and
447          "$EVENT_STATUS_NOTE_QUEUE" both for being used as flags for
448          "event_status()" function.
449        - NKSP language: Added support for bitwise operators ".or.", ".and."
450          and ".not.".
451        - NKSP language scanner: Fixed IDs matching to require at least one
452          character (i.e. when matching function names or variable names).
453        - NKSP language scanner: disabled unusued rules.
454        - Fixed behavior of play_note() and note_off() functions which must
455          be distinguished engine internally from "real" MIDI note on/off
456          events in order to avoid misbehaviors like hanging notes.
457        - Implemented built-in script variable "$KSP_TIMER".
458        - Implemented built-in script variable "$NKSP_REAL_TIMER".
459        - Implemented built-in script variable "$NKSP_PERF_TIMER".
460        - Implemented built-in script variable "$ENGINE_UPTIME".
461        - Implemented built-in script function "inc()".
462        - Implemented built-in script function "dec()".
463        - NKSP language fix: division expressions were evaluated too often.
464        - NKSP language fix: string concatenation operator was right
465          associative instead of left (to right).
466        - NKSP language correction: allow empty statements in entire language
467          (i.e. "if end if").
468        - Implemented built-in script function "stop_wait()".
469        - Implemented built-in script variable "$NI_CALLBACK_ID".
470        - Implemented built-in script variable "$NI_CALLBACK_TYPE".
471        - Implemented built-in script variable "$NKSP_IGNORE_WAIT".
472        - Added support for read-only built-in variables (respectively
473          handled by the script parser).
474        - Added built-in script constant "$NI_CB_TYPE_INIT".
475        - Added built-in script constant "$NI_CB_TYPE_NOTE".
476        - Added built-in script constant "$NI_CB_TYPE_RELEASE".
477        - Added built-in script constant "$NI_CB_TYPE_CONTROLLER".
478        - NKSP Language: Added support for user defined script functions.
479        - Implemented built-in script function "change_attack()".
480        - Implemented built-in script function "change_decay()".
481        - Implemented built-in script function "change_release()".
482        - Fixed all change_*() built-in script functions to apply their
483          synthesis parameter changes immediately in case the respective note
484          was triggered at the same time, instead of scheduling the parameter
485          change, especially because it would cause some parameter types's
486          changes either to be ramped (i.e. change_vol()) or other types even
487          to have not effect at all (i.e. change_attack()).
488        - Implemented built-in script function "sh_left()".
489        - Implemented built-in script function "sh_right()".
490        - Implemented built-in script function "min()".
491        - Implemented built-in script function "max()".
492        - NKSP Fix: "init" event handler was not always executed when a script
493          was loaded.
494        - NKSP built-in wait() script function: abort script execution if
495          a negative or zero wait time was passed as argument (since this is
496          a common indication of a bug either of the script or even of the
497          engine, which could lead to RT instability or even worse).
498        - ScriptVM: Implemented automatic suspension of RT safety
499          threatening scripts.
500        - Provide more user friendly error messages on syntax errors.
501        - Fixed NKSP parser warning "Not a statement" when assigning an
502          initializer list to an array variable.
503        - Implemented built-in script array variable "%ALL_EVENTS".
504        - Implemented built-in script function "in_range()".
505        - Implemented built-in script function "change_amp_lfo_depth()".
506        - Implemented built-in script function "change_amp_lfo_freq()".
507        - Implemented built-in script function "change_pitch_lfo_depth()".
508        - Implemented built-in script function "change_pitch_lfo_freq()".
509        - Implemented built-in script function "change_vol_time()".
510        - Implemented built-in script function "change_tune_time()".
511        - Implemented built-in script function "fade_in()".
512        - Implemented built-in script function "fade_out()".
513        - Fixed acceptance of wrong data type of parameters passed to built-in
514          script functions "change_vol()", "change_tune()", "change_pan()",
515          "change_cutoff()", "change_reso()", "change_attack()", "change_decay()",
516          "change_release()", "change_amp_lfo_depth()", "change_amp_lfo_freq()",
517          "change_pitch_lfo_depth()" and "change_pitch_lfo_freq()".
518        - Added built-in script function "get_event_par()" and implemented some
519          of its possible parameter selections.
520        - Added built-in script function "set_event_par()" and implemented some
521          of its possible parameter selections.
522        - Fixed a bunch of scheduler time related bugs.
523        - Fixed polyphonic variables not being reset to zero after usage.
524        - Built-in "ignore_event()" function: argument is now optional, like with
525          built-in function "ignore_controller()".
526        - Implemented built-in script function "change_velo()".
527        - Implemented built-in script function "change_note()".
528        - Adjusted behavior of "change_vol()" and "change_tune()" to a more
529          intuitive behavior if used in combination with "change_vol_time()" or
530          "change_tune_time()" respectively: now tuning/volume changes are only
531          assigned (without delay) immediately to a new note if the respective
532          timing function has not been called before, otherwise the volume/tuning
533          changes are automatically faded (before, only the event's time stamp was
534          relevant).
535         - Implemented built-in script function "array_equal()".
536         - Implemented built-in script function "search()".
537         - Implemented built-in script function "sort()".
538         - NKSP Fix: Never suspend "init" event handlers.
539         - Implemented built-in script function "same_region()" (currently only
540           available for gig format engine).
541         - Added built-in script constant "$NKSP_LINEAR".
542         - Added built-in script constant "$NKSP_EASE_IN_EASE_OUT".
543         - Implemented built-in script function "change_vol_curve()".
544         - Implemented built-in script function "change_tune_curve()".
545         - built-in "play_note()" function now supports a sample playback start
546           offset with argument 3, where special value -1 means to use the regular
547           sample offset as defined by the instrument file.
548         - Built-in array variable %KEY_DOWN[] is now a read-only variable.
549         - Built-in variable $EVENT_NOTE is now a read-only variable.
550         - Built-in variable $EVENT_VELOCITY is now a read-only variable.
551         - built-in "play_note()" function now accepts -2 for its fourth argument
552           (note duration) which means the life time of the note shall be sticked
553           to the requested note number of argument 1.
554         - Fix: built-in "play_note()" function now returns 0 as result value if
555           -1 was passed for its fourth argument (note duration) and the respective
556           parent note is already gone.
557        - Implemented built-in script function "change_play_pos()".
558        - NKSP language: Added support for user declared const array variables.
559        - NKSP language: Raise parser warning if array variable is accessed with
560          an index that exceeds the array's size.
561        - NKSP language fix: Unknown characters were not handled correctly.
562        - NKSP language: Added support for "synchronized .. end synchronized"
563          code blocks.
564        - Implemented built-in script function "abort()" which allows to abort
565          another script handler by passing its callback ID.
566        - Fixed potential memory access bug and potential undefined behavior of
567          "init" event handlers.
568        - Print a time stamp along to each call of built-in function "message()".
569        - ScriptVM API: Added VMParserContext::preprocessorComments() which allows
570          to retrieve all code blocks filtered out by the preprocessor.
571        - Added built-in script function "fork()".
572        - Added built-in array variable %NKSP_CALLBACK_CHILD_ID[].
573        - Added built-in variable $NKSP_CALLBACK_PARENT_ID.
574        - Fixed potential crash when accessing dynamic built-in array variables.
575        - Added built-in script function "callback_status()".
576        - Added built-in constant $CALLBACK_STATUS_TERMINATED.
577        - Added built-in constant $CALLBACK_STATUS_QUEUE.
578        - Added built-in constant $CALLBACK_STATUS_RUNNING.
579        - Removed max. value limitation of built-in functions "change_attack()",
580          "change_decay()" and "change_release()" to i.e. allow passing 2000000
581          for doubling the respective time.
582        - NKSP script editor syntax highlighting API: Fixed app termination due
583          to a lexer start condition stack underrun.
584        - NKSP preprocessor: Fixed wrong behavior on nested USE_CODE_IF() and
585          USE_CODE_IF_NOT() preprocessor statements.
586        - NKSP: Added built-in preprocessor condition NKSP_NO_MESSAGE, which
587          can be set to disable all subsequent built-in "message()" function calls
588          on preprocessor level.
589        - Implemented built-in script function "change_sustain()".
590        - NKSP script editor syntax highlighting API: catch all fatal lexer errors,
591          to avoid the editor app to crash on ill-formed text input.
592        - Added built-in script function "change_pan_time()".
593        - Added built-in script function "change_pan_curve()".
594        - Added built-in script function "change_cutoff_attack()".
595        - Added built-in script function "change_cutoff_decay()".
596        - Added built-in script function "change_cutoff_sustain()".
597        - Added built-in script function "change_cutoff_release()".
598        - Added built-in script function "change_cutoff_lfo_depth()".
599        - Added built-in script function "change_cutoff_lfo_freq()".
600    
601      * Instruments DB:
602        - Fixed memory access bug of general DB access code which lead to
603          undefined behavior.
604        - Cleanup of instruments DB file creation and opening code.
605        - The instrument DB path of linuxsampler's --create-instruments-db argument
606          is now optional, if it is missing, then a default location is used.
607        - Added support for scanning SFZ (.sfz) files.
608        - Added support for scanning Sound Font (.sf2) files.
609        - Fixed undefined DB transaction behavior.
610    
611    Version 2.0.0 (15 July 2015)
612    
613    * packaging changes:    * packaging changes:
614      - fixed building with newer MinGW-w64      - fixed building with newer MinGW-w64
# Line 291  Version CVS HEAD (?) Line 901  Version CVS HEAD (?)
901      - bugfix: generation of velocity curves etc should not be done      - bugfix: generation of velocity curves etc should not be done
902        after each "#include", only after the main file is parsed        after each "#include", only after the main file is parsed
903      - bugfix: line numbers in error messages were wrong after "#include"      - bugfix: line numbers in error messages were wrong after "#include"
904        - added support for float and 32 bit sample files
905    
906    * SoundFont format engine:    * SoundFont format engine:
907      - Initial implementation (not usable yet)      - Initial implementation (not usable yet)
# Line 338  Version CVS HEAD (?) Line 949  Version CVS HEAD (?)
949      - VST: implemented retrieval and switching of programs using the      - VST: implemented retrieval and switching of programs using the
950        sampler's internal MIDI instrument mapping system        sampler's internal MIDI instrument mapping system
951    
952      * Instrument editor interface:
953        - Changed instrument editor plugin interface, providing additional
954          informations like the EngineChannel for which the instrument editor was
955          spawned for. This allows the instrument editors to interact more actively
956          with the sampler.
957    
958    * MIDI driver:    * MIDI driver:
959      - ALSA MIDI driver supports now "NAME" device parameter, for overriding      - ALSA MIDI driver supports now "NAME" device parameter, for overriding
960        the ALSA sequencer client name        the ALSA sequencer client name
# Line 361  Version CVS HEAD (?) Line 978  Version CVS HEAD (?)
978      - MME bugfix: driver wasn't closed properly      - MME bugfix: driver wasn't closed properly
979      - CoreMIDI: automatically connect to all input sources by default (driver      - CoreMIDI: automatically connect to all input sources by default (driver
980        parameter "AUTO_BIND").        parameter "AUTO_BIND").
981        - CoreMIDI: fixed auto bind feature to CoreMIDI ports that go online
982        - CoreMIDI: fixed minor memory leak
983    
984    * audio driver:    * audio driver:
985      - ASIO driver fixes for newer gcc versions (fix from PortAudio)      - ASIO driver fixes for newer gcc versions (fix from PortAudio)
# Line 412  Version CVS HEAD (?) Line 1031  Version CVS HEAD (?)
1031        "SUBSCRIBE SEND_EFFECT_CHAIN_INFO"        "SUBSCRIBE SEND_EFFECT_CHAIN_INFO"
1032      - provide comprehensive error messages on LSCP syntax errors      - provide comprehensive error messages on LSCP syntax errors
1033        (suggesting expected next non-terminal symbols)        (suggesting expected next non-terminal symbols)
1034        - Fixed client connection not being closed after network errors.
1035    
1036    * LSCP shell:    * LSCP shell:
1037      - Added support for auto correction of obvious and trivial syntax mistakes.      - Added support for auto correction of obvious and trivial syntax mistakes.
# Line 461  Version CVS HEAD (?) Line 1081  Version CVS HEAD (?)
1081        $GIG_DIM_EFFECT3DEPTH, $GIG_DIM_EFFECT4DEPTH, $GIG_DIM_EFFECT5DEPTH.        $GIG_DIM_EFFECT3DEPTH, $GIG_DIM_EFFECT4DEPTH, $GIG_DIM_EFFECT5DEPTH.
1082      - Giga format scripts: Implemented built-in script function      - Giga format scripts: Implemented built-in script function
1083        "gig_set_dim_zone(event_id, dimension, zone)".        "gig_set_dim_zone(event_id, dimension, zone)".
1084      - Implemented built-in script int array variable $KEY_DOWN.      - Implemented built-in script int array variable %KEY_DOWN.
1085      - Implemented built-in script function "abs()".      - Implemented built-in script function "abs()".
1086      - Implemented built-in script function "random()".      - Implemented built-in script function "random()".
1087      - Implemented built-in script function "num_elements()".      - Implemented built-in script function "num_elements()".
# Line 475  Version CVS HEAD (?) Line 1095  Version CVS HEAD (?)
1095        (i.e. return value of new script function "by_marks()").        (i.e. return value of new script function "by_marks()").
1096      - Pass/preserve polyphonic variable data from respective "note" event      - Pass/preserve polyphonic variable data from respective "note" event
1097        handler to "release" event handler.        handler to "release" event handler.
1098        - Fixed crash when using built-in script function "by_marks()".
1099    
1100    * Bug fixes:    * Bug fixes:
1101      - Fixed crash which may occur when MIDI key + transpose is out of range      - Fixed crash which may occur when MIDI key + transpose is out of range

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